C Introduction to the human brain Flashcards

1
Q

What does the brainstem control?

A

breathing and consciousness

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2
Q

What separates the 2 cerebral hemispheres?

A

great longitudinal fissure

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3
Q

What are the peaks in the cerebrum called?

A

Gyri

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4
Q

What are the grooves in the cerebrum called?

A

sulci

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5
Q

What is grey matter?

A

cell bodies

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6
Q

What is white matter?

A

axons

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7
Q

What are the 2 prominent sulcus of the brain?

A
  1. central

2. lateral

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8
Q

What is the post central gyrus involved in?

A

sensory cortex

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9
Q

What is the pre central gyrus involved in?

A

motor cortex

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10
Q

What are the 4 lobes of the brain and what is each lobe involved in?

A
  1. Frontal lobe

decisions and motor cortex

  1. Parietal

sensory and memories

  1. Temporal

hearing and memory

  1. Occipital

sight

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11
Q

What does the IV ventricle contain?

A

CSF

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12
Q

What is the diencephalon made up of and what does it contain?

A

thalamus and hypothalamus

control internal system - hunger and cold

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13
Q

What is the relay system between the brainstem and the spinal cord?

A

thalamus

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14
Q

What controls the autonomic nervous system?

A

hypothalamus

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15
Q

What 3 swellings does the neural tube develop into?

A
  1. Prosencephalon - Fore brain
  2. Mesencephalon - Midbrain
  3. Rhombencephalon - Hindbrain
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16
Q

What are the primary brain vesicles? (3)

A
  1. Prosencephalon
  2. Mesencephalon
  3. Rhombencephalon
17
Q

What secondary brain vesicles does the prosencephalon split into? (2)

A
  1. telencephalon

2. diencephalon

18
Q

What does the telencephalon and the diencephalon form in the mature brain?

A

Telencephalon - cerebral hemispheres

Diencephalon - diencephalon

19
Q

What secondary vesicles are formed from the mesencephalon?

A

Mesencephalon

20
Q

What does the mesencephalon form in the mature brain?

A

midbrain

21
Q

What secondary brain vesicles are formed from the rhombencephalon?

A
  1. metencephalon

2. myelencephalon

22
Q

What does the met encephalon and mesencephalon form in the mature brain?

A

Metencephalon - Pons and cerebellum

Myelencephalon - medulla oblongata

23
Q

At what end do the 5 swellings of the CnS develop from?

A

rostral end

24
Q

What is the main venous return of the brain?

A

superior sagital sinus

25
Q

What are the 3 dural infoldings?

A
  1. falx cerebri
  2. tentorium cerebelli
  3. falx cerebelli
26
Q

Where is the falx cerebri?

A

between cerebral hemispheres

27
Q

Where is the tentorium cerebelli?

A

between occipital lobes and cerebellum

28
Q

Where is the falx cerebelli?

A

between cerebellar hemispheres

29
Q

What are the sinuses involved in the venous drainage of the brain? (6)

A
  1. sigmoid sinus
  2. right transverse sinus
  3. confluence of sinuses
  4. straight sinus
  5. superior sagital sinus
  6. inferior sagital sinus
30
Q

What 2 pairs of arteries supply the brain?

A
  1. vertebral artery

2. internal carotid

31
Q

What are the 3 pairs of cerebellar arteries?

A

Ant, Pst and sup cerebellar arteries

32
Q

What are the 3 pairs of cerebral arteries?

A

Ant, post and middle cerebral

33
Q

What are the important arteries of the ventral brain stem? (9)

A
  1. vertebral arteries
  2. posterior inferior cerebellar artery
  3. anterior inferior cerebellar artery
  4. basilar artery
  5. posterior cerebral artery
  6. supeiror cerebellar artery
  7. internal carotid artery
  8. middle cerebral artery
  9. anteior cerebral artery
34
Q

What lobe does the anterior cerebral artery supply and what does stroke in ACA result in?

A

frontal lobe

opposite leg weakness

35
Q

What does the middle cerebral artery supply?

A

frontal lobe

lateral surfaces of temporal and parietal lobes

36
Q

What does the posterior cerebral artery supply?

A

temporal and occipital lobes

37
Q

What are branches of the middle cerebral artery and what is it commonly associated with?

A

Lenticulostriate arteries

lacunar stroke - pure motor stroke